FIELD: pumps building.
SUBSTANCE: invention relates to pump engineering and can be used in designing devices for volumetric delivery of various fluids in automatic mode, with no external control. Pump comprises coaxially arranged pump and hydraulic cylinder. Pump includes a piston and a case with a reverse inlet and outlet valve installed in it and made in a single unit with an inlet and outlet nozzle, respectively. Hydraulic cylinder includes a piston, channels for supply, removal and drainage of working fluid. Hydraulic cylinder piston is composed of hollow cylinder accommodating hydraulic distributing and switching devices. Hydraulic distributing device is made in the form of valve unit of double action, containing movable spring-loaded piston with channels and shutoff elements made in the form of balls. Switching device is made in the form of two independent shutoff conical normally closed valves having mechanical connection with the hydraulic cylinder body and the pump housing. In hydraulic cylinder there are holes for inlet and drain of working fluid of hydraulic drive from switching device.
EFFECT: increased reliability of operation with simultaneous reduction of overall dimensions and weight.
1 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PISTON-TYPE HYDRAULIC DRIVE PUMP | 2019 |
|
RU2719754C1 |
| DOUBLE ACTION HYDRAULIC MULTIPLIER | 2018 |
|
RU2679958C1 |
| HYDRAULIC MULTIPLIER | 2016 |
|
RU2643574C1 |
| HYDRAULIC MULTIPLIER | 2016 |
|
RU2637162C1 |
| HYDRAULIC SAFETY VALVE | 2015 |
|
RU2612665C1 |
| HYDRAULIC SYSTEM FOR ALIGNMENT OF HYDRAULIC DRIVE OF DEVICE FOR TRANSFER OF PRESSURE MEDIUM FROM ONE SYSTEM TO ANOTHER WITHOUT CONTACT OF MEDIUMS | 2008 |
|
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SU1664727A2 |
| HYDRAULIC SYSTEM OF CONTROL OVER PRESS | 1998 |
|
RU2152309C1 |
| BALL VALVE WITH HYDRAULIC DRIVE | 2018 |
|
RU2692851C1 |
| ADDITIVE FEEDER | 2001 |
|
RU2204054C2 |
